Which of the following samples would constitute a biased sample?
A
Seventh grade girls were randomly surveyed to determine what theme the whole school would prefer for the dance.
B
A tele-market research company randomly called and surveyed one thousand men and women over the age of 65 to determine which insurance companies were preferred in retirement.
C
Kids at a large preschool were randomly surveyed to determine the color most preschoolers like best at that school.
D
Two thousand people were randomly surveyed about their favorite candy in four different cities in Arizona to determine Arizona’s favorite candy.